Coding Standards: Main plugin file

* fixed indentation - swapped spaces for tabs at start of line, swapped
tabs for spaces min-line for alignment
* removed instances of `@return void` and `@access public`

@see http://make.wordpress.org/core/handbook/coding-standards/php/
Coding Standards: Abstract classes

* fixed indentation - swapped spaces for tabs at start of line, swapped
tabs for spaces min-line for alignment
* removed instances of `@return void` and `@access public`
* improved readability

@see http://make.wordpress.org/core/handbook/coding-standards/php/
Coding Standards: Less files

* fixed indentation - swapped spaces for tabs at start of line, swapped
tabs for spaces min-line for alignment
Coding Standards: Admin JS

Fixed spacing as per
http://make.wordpress.org/core/handbook/coding-standards/javascript/
Coding Standards: Admin - Importers

* fixed indentation - swapped spaces for tabs at start of line, swapped
tabs for spaces min-line for alignment
* removed instances of `@return void` and `@access public`
* improved readability

@see http://make.wordpress.org/core/handbook/coding-standards/php/
Coding Standards: Admin - Meta boxes

* fixed indentation - swapped spaces for tabs at start of line, swapped
tabs for spaces min-line for alignment
* removed instances of `@return void` and `@access public`
* improved readability

@see http://make.wordpress.org/core/handbook/coding-standards/php/
Coding Standards: Admin - Reports

* fixed indentation - swapped spaces for tabs at start of line, swapped
tabs for spaces min-line for alignment
* removed instances of `@return void` and `@access public`
* improved readability

@see http://make.wordpress.org/core/handbook/coding-standards/php/
Coding Standards: Admin - Settings

* fixed indentation - swapped spaces for tabs at start of line, swapped
tabs for spaces min-line for alignment
* removed instances of `@return void` and `@access public`
* improved readability

@see http://make.wordpress.org/core/handbook/coding-standards/php/
[#3176] Clean up gitignore
[#3176] Add unit test boostrap
[#3176] Add unit test framework
[#3176] Add webhooks REST API endpoint tests

100% coverage :)
[#3176] Add core function tests
[#3176] Add woocommerce class tests
[#3176] Add readme
[#3176] REST API webhooks endpoint tweaks from unit test
Change title for Documentation #6132
Change title for API Docs #6132
[#3176] Use shop manager role for API tests
[#3176] Refactor bootstrap

* Adjust load and install order
* Fix issue with stale capabilities after install